The design of the bag is great, I love it! But poor that about the capacity & the material of the bag bottom. The capacity is not match, the spec. shown is 2000 cu in but I found the product tag on the bag is 13xx cu in only. I did't buy if the bag is 13xx cu in only, disappointed. Also, is too thin of the nylon bottom.

The Jayhawk is the best backpack for commuting to and from work. The pack is split into two sections: (1) for your 15 inch laptop and maybe some papers/magazines/workbooks/folders and (2) a larger drop zone for things like a jacket, sweater, purse, or just larger items like a water bottle, lunch, etc. Because of the design, the bag lays flat (so I don't take up a ton of room on Muni, even if I don't take it off), and the straps are comfortable, so it never feels heavy. I've taken this as my carry-on on planes, but I prefer the SuperBreak for that, as I can stuff my purse into the SuperBreak easily when consolidating bags, but this one is a little more tricky.

I'm putting this first so JanSport reps will see it: the backpack is significantly smaller than the 2000 cu in/32L capacity advertised online. Another commenter mentioned this, and they're correct, the bag is only 1300 cu in, which is about 21L. It even comes with a tag that specifically notes its capacity as 1300 cu in. Not sure why it's listed as 2000 online. It should be fixed.

That's been a pretty big deal for me, since I'm a graduate student and bought this hoping that it would provide an attractive way for me to haul around my laptop, books, and food for the ~12 hours I spend on campus each day.

Because the pack is so much smaller than described, it doesn't always fit everything I need, or if it does, it requires a careful game of tetris to get everything in. I don't plan to return the bag, it works well enough, but I do feel like I've fallen victim to a bit of a bait-and-switch. I would appreciate it if Jansport made an effort to correct this issue and reimbursed those of us who purchased the bag under false pretenses.

I ultimately returned this bag because the squareish top corners are difficult zip. Loved the look of the bag. The interior space would have been perfect for my use (hauling a toddlers books and small toys for long trips -- outside pocket for small toys, divided interior for books). But I couldn't get over how difficult it was to maneuver the zipper around those top corners so I returned this bag and purchased the Hatchet instead. Also, had I kept this one, I would have prefered a nice thick canvas instead of the nylon.